Mutual conversion between jQuery objects and DOM objects

1. Define jQuery as follows: var $ variablejQuery object; DOM object definition: varvariableDOM object; 2. Converting jQuery object to DOM object jQuery object cannot use DOM object method. JQuery has two methods to define a jQu... SyntaxHighlighter. 1.
JQuery is defined as follows:

Var $ variable = jQuery object;

DOM objects are defined as follows:

Var variable = DOM object;

2. convert a jQuery object to a DOM object
JQuery objects cannot use DOM objects.
JQuery has two methods to convert a jQuery object to a DOM object: [index] And get (index)
(1) [index]

Var $ variable = $ ("# con"); // jQuery object
Var dom = $ variable [0]; // convert to a DOM object

(2) get (index)

Var $ variable = $ ("# con"); // jQuery object
Var dom = $ variable. get (0); // convert to a DOM object

3. convert a DOM object to a jQuery object
The jQuery object method cannot be used in DOM objects.

Var dom = document. getElementById ('Con '); // DOM object
Var $ variable = $ (dom); // convert to jQuery object

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